A study on the correlation of the structural integrity’s reduction factors using parametric analysis

You-Sung La; Min-Soo Park; Sungyil Koh; Chang-Yong Kim

doi:10.9711/KTAJ.2021.23.6.485

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2021 Vol.23, Issue 6 Preview Page Next Page

Research Paper

A study on the correlation of the structural integrity’s reduction factors using parametric analysis 매개변수 해석을 이용한 구조물 건전도 저감 영향인자 상관성 연구

30 November 2021. pp. 485-502

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Abstract

In order to evaluate the impact of ground subsidence and superstructures that are inevitably caused by tunnel excavation, a total of seven major influencing factors of surface subsidence and structural soundness reduction were set, and a Parameter Study using numerical analysis was conducted. Stability analysis was performed using scheme of Boscardin and Cording method and the maximum subsidence amount and the angular displacement, and correlation analysis was performed for each major influencing factor. In addition, it was applied that used the mutual behavior of the ground and the structure by parameter analysis in the site of the OOO tunnel located in Hwaseong-si, Gyeonggi-do, and the applicability of the site was analyzed. As a result, the error was found to be 1.0%, and it could be used as a basic material for determining the appropriate tunnel route under various conditions when evaluating the stability of the structure according to tunnel excavating at the design stage.

Keywords

Structure damage evaluation

Parameter analysis

Correlation analysis

Numerical analysis

터널 굴착으로 인해 필연적으로 발생되는 지반침하 및 상부 구조물 영향 평가를 수행하기 위해 지표침하와 구조물 건전도 저감의 총 7개의 주요 영향 인자들을 설정하고 수치해석을 이용한 Parameter Study를 수행하였다. 그 결과를 통해 Boscardin and Cording 구조물 손상도표를 이용한 안정성 분석, 최대침하량과 각변위를 이용한 안정성 분석을 수행하고 각각의 주요 영향 인자들에 대한 상관성 분석을 실시하였다. 또한, 매개변수 해석을 통한 지반 및 구조물 상호거동 양상을 이용하여 경기도 화성시에 위치한 OOO터널 현장에 적용하고 현장 적용성을 분석하였다. 그 결과 오차가 약 1.0로 나타나 설계단계에서의 터널 굴착에 따른 구조물 안정성 평가 시 다양한 조건에서 적합한 노선 결정을 위한 기초 자료로 활용될 수 있도록 하였다.

키워드

구조물 손상평가

매개변수 해석

상관성 분석

수치해석

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Information

Publisher :Korean Tunneling and Underground Space Association
Publisher(Ko) :한국터널지하공간학회
Journal Title :Journal of Korean Tunnelling and Underground Space Association
Journal Title(Ko) :한국터널지하공간학회 논문집
Volume : 23
No :6
Pages :485-502
Received Date : 2021-10-20
Revised Date : 2021-11-01
Accepted Date : 2021-11-01
DOI :https://doi.org/10.9711/KTAJ.2021.23.6.485

Journal of Korean Tunnelling and Underground Space Association ISSN:2233-8292(Print) 2287-4747(Online) 한국터널지하공간학회 논문집

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